That is so spot on. When I was in my early teens I started working for a few small businesses that made mods to vans for people in wheelchairs to drive. I buil

That is so spot on. When I was in my early teens I started working for a few small businesses that made mods to vans for people in wheelchairs to drive. I built and installed those as instructed without question. By the time I was in my late teens I realized there were some dangerous flaws in some of the things we were doing and began pointing them out. For the most part when I did that the design was modified to address the flaw, but one time involved more than just a tweak and would've been costly and I was told "You're not qualified to evaluate this", and that was true in as much as I had no degree in engineering. What I did have by then was years of experience with how things break and fail. One example is a company I subcontracted work for had a design for a device that moved the driver's seat in a van backwards about two feet on a set of rails so a paraplegic could slide from the wheelchair to the drivers seat, and then move the seat forward towards the driver's controls. They wanted me to build and install them. They used a rack gear and power window motor for a car to do this. The rack gear was made of steel, but the power window motor gear was made of plastic and cheap cast aluminum, and that plastic gear was all that was holding the driver's seat in place. They had no kind of latch at all to hold the seat in the driver's position so it was obvious that in a rear end collision the window motor gear and housing would break and the driver would be slammed backwards about 2.5 ft and then again forwards again with great force. They really did not want to know that, and refused to make any changes to the design. So I told the State inspector about it a few weeks later when he came to inspect a van that was finished for a client. Even though it was very simple he had no idea of how that device even worked, and told me so. So he went to the CEO of the company and told them about what I'd told him and I was fired. They went broke less than a year later so as far as I know there were never many of those shipped.